Battery charger



FIG. 1 is a perspective view of a battery charger;

FIG. 2 is a back view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view of a battery charger, shown in a first position of use:

FIG. 9 is a back view thereof;

FIG. 10 is a front view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a top view thereof;

FIG. 14 is a bottom view thereof;

FIG. 15 is a perspective view of a battery charger, shown in a second position of use;

FIG. 16 is a back view thereof;

FIG. 17 is a front view thereof;

FIG. 18 is a left side view thereof;

FIG. 19 is a right side view thereof;

FIG. 20 is a top view thereof; and,

FIG. 21 is a bottom view thereof.

The broken lines included in the Figures are for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a battery charger, as shown and described. 